Method of making reenforcing corner brackets



Dec. 8, 1925-. 1.564.942 V c. M. CLARKE I METHOD OF MAKING REENFORCINGCORNER BRACKETS Filed Feb. 1925 IN VE/VTOR WITNESSES Patented Dec. 8,1925.

UNITED STATES CHARLES M. CLARKE, OF SEXUIGKLEY, PENNSYLVANIA.

METHOD OF MAKING REENIEORCING CORNERBRACKETS.

Application filed February 12, 1925. Serial No. 8,665.

To all whom it may concern:

Be it known that I, CHARLES M. CLARKE, a citizen of the United States,residing at Se-wickley, in the county of, Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inMethods of Making Reenforcing Corner Brackets, of which the following isa specification.

My invention relates to reenforcing corner brackets for D-handles, ofthe kind in which bifurcated side arms of the main stem are connectedwith the ends of the grip, and to the method of making the same. It hasin view to utilize sections of seamless or other tubing to form thebracket blanks, sheared and bent for attachment, as herein afterdescribed.

In the drawings:

Fig. 1 is a face view of a D-handle provided with my improved cornerbracket;

Fig. 2 is a View in elevation, showing two of the blanks as sheared froma section of tubing;

Fig. 3 is a plan view of said blanks in relative position, with thesurplus metal sheared away;

Fig. 4 is a view of one of the blanks bent to form;

Fig. 5 is an inner face View of the bracket.

The object in view is to provide a simple one-piece bracket adapted toembrace and cover the upper outer portion of the bifurcated side arm 2,and to extend inwardly by an annular ferrule or ring 3 for connectionwith and around the end of the grip 4. For such purpose, I utilize shortlengths of tubing forming sections of proper length, as indicated at a,cut off from the tubing 3 indicated in dotted lines, Fig; 2.

A portion of the tubing providing the ring 3 is left intact at each end,as well as a portion 6, at each opposite side, providing the armcovering and connecting member.

The metal is sheared away between the end rings 3 and the members 6, ateach opposite side, by removing such part of the tube section, indicatedat Such shearing is done by suitable dies in one or more operations, soas to leave the diagonally opposite ends of members 6 rounded atthetips, as at 5, and considerably narrower in width, as at 6.

The dies are so designed as to also leave a short straight edge 7 aboutmidway on opposite sides, adapted to be bent around against the adjacentinner edge of ring 3, when connecting member 6 is bent down to theposition in the finished article illustrated in Fig. 4. Beyond the edge7 thetubing blank is narrowed by the shearing operation to the width ofmember 6, preferably by a curving filet edge 8 at each side.

Finally, the member 6 is 'swaged around to the position it occupies withrelation to ring 3, providing an outer rounded shoulder 9 and asimilarly rounded inner dome-shaped cavity for the upper end of side arm2.

Holes 10 and 11 are punched for riveting connection through the grip 4and side arm 2, in the usual way.

The special advantages of the device are in its cheapness, strength andutility. By using a. tubular blank, the ring 3 is already formed withoutfurther shaping or welding. The member 6 is likewise already ofapproximately the proper curvature in cross section, and the blank isotherwise generally conformable to the desired shape, when the side 6has been bent down at approximately right angles to its originalposition.

The device may be easily pressed and finished to shape; the waste metalis reduced to a minimum, and the edges 77 may be easily brought intosmooth registering position with the adjacent edges of ring 3, eitherwith or without welding.

What I claim is:

1. The method of making a corner reenforcing bracket for D-handlesconsisting in shearing a tubular blank to provide a terminal ring oforiginal tubular cross section and an elongated concave shank, andbending said shank at substantially right angles to the axial center ofthe ring. 7

2. The method of making a corner reenforcing bracket for D-handlesconsisting in shearing a tubularblank to provide a terminal ring oforiginal tubular cross section and an elongated concave shank having arounded terminal, and bending said shank at substantially right anglesto the axial center of the ring with portions of its side edges againstadjacent edges of the ring.

3. In the manufacture of reenforcing brackets for D-handles of the classdescribed from tubes, the steps consisting in first re moving portionsof a tubular section to provide an integral terminal rlng and anextended side piece, and then bending the side piece to operativeposition against the ring.

In testimony whereof I hereunto aflix my signature.

CHARLES-M. CLARKE; I

